it may set it back a bit. >> couric: all right. bob schieffer and jeff greenfield, gentlemen, thank you so much. up next, he was a victim who decided to stand up for himself and put bull lise in their place . and the life i want to live. fortunately, there's enbrel. enbrel can help relieve pain, stiffness, fatigue, and stop joint damage. because enbrel suppresses your immune system, it may lower your ability to fight infections. serious, sometimes fatal, events including infections, tuberculosis, lymphoma and nervous system and blood disorders have occurred. before starting enbrel, your doctor should test you for tuberculosis. also ask your doctor if you live in an area with a greater risk for certain fungal infections. don't start enbrel if you have an infection, like the flu. tell your doctor if you're prone to infections, have cuts or sores, have had hepatitis b, have been treated for heart failure, or if, while on enbrel, you experience persistent fever, bruising, bleeding or paleness.